fuel problem with l3400

jrbohannon

New member

Equipment
l3400
Jan 4, 2020
5
0
0
hockley, tx usa
i have a kubota l3400 that starts and runs for a short perion then just dies. i have replaced the fuel soleniod and bled the injectors. when i turn the ignition switch on i can hear the solenoit click and sometimes it starts buit sometimes i have to wait for another click before it starts. when it is running sometimes it just dies then othertimes i can hear the solenoid clicking very rapid then it dies. i just tried to bleed the injectors again but i couldn't get any diesel out of the injectors until the clicking started again could this be the injector pump or has anyone elese had this problem. thanks for any help i can get.
 

North Idaho Wolfman

Moderator
Staff member
Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
28,306
4,857
113
Sandpoint, ID
i have a kubota l3400 that starts and runs for a short perion then just dies. i have replaced the fuel soleniod and bled the injectors. when i turn the ignition switch on i can hear the solenoit click and sometimes it starts buit sometimes i have to wait for another click before it starts. when it is running sometimes it just dies then othertimes i can hear the solenoid clicking very rapid then it dies. i just tried to bleed the injectors again but i couldn't get any diesel out of the injectors until the clicking started again could this be the injector pump or has anyone elese had this problem. thanks for any help i can get.
Stop solenoid relay, OPC (occupancy computer) or Safety switch that is malfunctioning.

It's not a Injection pump issue. ;)
 

JerryMT

Active member

Equipment
Kubota M4500, NH TD95D,Ford 4610
Jun 17, 2017
528
156
43
The Palouse - North Idaho
i have a kubota l3400 that starts and runs for a short perion then just dies. i have replaced the fuel soleniod and bled the injectors. when i turn the ignition switch on i can hear the solenoit click and sometimes it starts buit sometimes i have to wait for another click before it starts. when it is running sometimes it just dies then othertimes i can hear the solenoid clicking very rapid then it dies. i just tried to bleed the injectors again but i couldn't get any diesel out of the injectors until the clicking started again could this be the injector pump or has anyone elese had this problem. thanks for any help i can get.
It sounds like there is a problem with the electrical system connected to the fuel solenoid. Bad connection, loose wire, bad relay, key swtch, etc
 

jrbohannon

New member

Equipment
l3400
Jan 4, 2020
5
0
0
hockley, tx usa
Stop solenoid relay, OPC (occupancy computer) or Safety switch that is malfunctioning.

It's not a Injection pump issue. ;)
i forgot i also put a new safety switch in if the one you are talking about goes under the seat. even with the new switch it keeps running when i stand up and i can crank it standing beside the tractor.
 

North Idaho Wolfman

Moderator
Staff member
Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
28,306
4,857
113
Sandpoint, ID
i forgot i also put a new safety switch in if the one you are talking about goes under the seat. even with the new switch it keeps running when i stand up and i can crank it standing beside the tractor.
To get you more info, what version L3400 do you have, F, DT or HST?
 

whitetiger

Moderator
Staff member

Equipment
Kubota tech..BX2370, RCK60, B7100HST, RTV900 w plow, Ford 1100 FWA
Nov 20, 2011
2,542
1,059
113
Kansas City, KS
i have a kubota l3400 that starts and runs for a short perion then just dies. i have replaced the fuel soleniod and bled the injectors. when i turn the ignition switch on i can hear the solenoit click and sometimes it starts buit sometimes i have to wait for another click before it starts. when it is running sometimes it just dies then othertimes i can hear the solenoid clicking very rapid then it dies. i just tried to bleed the injectors again but i couldn't get any diesel out of the injectors until the clicking started again could this be the injector pump or has anyone elese had this problem. thanks for any help i can get.
Most commonly caused by the hydro pedal safety switch, either failing or out of adjustment.